| ATR-FTIR | Attenuated Total Reflectance Fourier-Transform Infrared |
|---|---|
| ATR-FTIR | Attenuated total reflection Fourier transform infrared |
| ATR FT-IR | Attenuated total reflection Fourier transform infrared spectroscopy |
| DFT | Discrete Fourier Transform |
| FFT | Fast Fourier 'Transformation |